Some log patterns that I see in my JIRA instance has users : anonymous , what exactly are these users ?
example :
2015-06-18 09:07:44,884 ajp-bio-8009-exec-79 INFO anonymous 547x66030x1 - 10.3.6.47 /browse/JC [jira.projects.web.BrowseProject] Specified project id to browse, but it is diff to current project. Most prob a permission violation (or it doesn't exist)